Quarter	Percentage of GDP
1999-01-01	15.5
1999-04-01	15.3
1999-07-01	15.7
1999-10-01	18.2
2000-01-01	15.9
2000-04-01	15.8
2000-07-01	15.8
2000-10-01	18.7
2001-01-01	22.0
2001-04-01	22.7
2001-07-01	22.3
2001-10-01	21.1
2002-01-01	20.6
2002-04-01	21.2
2002-07-01	23.5
2002-10-01	21.9
2003-01-01	22.4
2003-04-01	23.1
2003-07-01	24.9
2003-10-01	26.8
2004-01-01	28.7
2004-04-01	28.7
2004-07-01	28.1
2004-10-01	27.4
2005-01-01	25.5
2005-04-01	25.0
2005-07-01	25.9
2005-10-01	23.1
2006-01-01	22.5
2006-04-01	22.1
2006-07-01	24.1
2006-10-01	21.8
2007-01-01	21.2
2007-04-01	20.6
2007-07-01	20.4
2007-10-01	20.9
2008-01-01	20.8
2008-04-01	20.6
2008-07-01	25.4
2008-10-01	31.5
2009-01-01	36.1
2009-04-01	46.4
2009-07-01	53.2
2009-10-01	63.5
2010-01-01	61.5
2010-04-01	61.0
2010-07-01	60.3
2010-10-01	61.1
2011-01-01	60.3
2011-04-01	59.2
2011-07-01	59.0
2011-10-01	58.8
2012-01-01	57.5
2012-04-01	57.8
2012-07-01	62.3
2012-10-01	64.1
2013-01-01	65.6
2013-04-01	65.2
2013-07-01	67.8
2013-10-01	66.4
2014-01-01	64.5
2014-04-01	65.7
2014-07-01	73.1
2014-10-01	67.0
2015-01-01	68.5
2015-04-01	69.7
2015-07-01	71.9
2015-10-01	73.8
2016-01-01	73.5
2016-04-01	73.7
2016-07-01	74.2
2016-10-01	72.8
2017-01-01	72.1
2017-04-01	71.9
2017-07-01	71.0
2017-10-01	70.7
2018-01-01	70.3